Anadarko Petroleum settles pollution clean-up claims: source
Anadarko's stock rose 8 percent in afternoon trading on the New York Stock Exchange as word of a settlement circulated.
The Department of Justice and the Environmental Protection Agency have scheduled a press conference for 3 p.m. (1900 GMT) to announce what they said was a major development in an environmental matter.
(Reporting by Nicholas Brown in New York and Tom Hals in Wilmington, Delaware; Editing by Grant McCool)